diff --git a/include/otbRegionComparator.h b/include/otbRegionComparator.h
index bdac8df1a5dd0a153d29622b858a6aaf5b5e3f26..2d45207a2e736b6d898275dc505eea4c111ebe28 100644
--- a/include/otbRegionComparator.h
+++ b/include/otbRegionComparator.h
@@ -35,6 +35,11 @@ using namespace std;
 
 namespace otb {
 
+/* \class RegionComparator
+ * \brief Compare regions layout
+ *
+ *  \ingroup SimpleExtractionTools
+ */
 template<class TInputImage1, class TInputImage2=TInputImage1> class RegionComparator{
 public:
 
diff --git a/include/otbStatisticsImageCustomFilter.h b/include/otbStatisticsImageCustomFilter.h
index 886894f732b82e87b9d79fed94e27a396fcc07a0..8ff6fcad5493cd713c2cc8f557c710b5321c1921 100644
--- a/include/otbStatisticsImageCustomFilter.h
+++ b/include/otbStatisticsImageCustomFilter.h
@@ -34,7 +34,7 @@ namespace otb
  * A value to ignore (in the stats) can be chosen
  *
  * \ingroup MathematicalStatisticsImageCustomFilters
- * \ingroup ITKImageStatistics
+ * \ingroup SimpleExtractionTools
  *
  * \wiki
  * \wikiexample{Statistics/StatisticsImageCustomFilter,Compute min\, max\, variance and mean of an Image.}
diff --git a/include/otbVectorDataToLabelImageCustomFilter.h b/include/otbVectorDataToLabelImageCustomFilter.h
index 37cce5706aefb16f6170067345d26bebbd25d151..a40b3638fbb85244127c8fd14e720390b47a485c 100644
--- a/include/otbVectorDataToLabelImageCustomFilter.h
+++ b/include/otbVectorDataToLabelImageCustomFilter.h
@@ -39,6 +39,7 @@ namespace otb {
  *
  *  OGRRegisterAll() method must have been called before applying filter.
  *
+ * \ingroup SimpleExtractionTools
  */
 template <class TVectorData, class TOutputImage  >
 class  ITK_EXPORT VectorDataToLabelImageCustomFilter :